2.总包单位关键岗位人员配备不足，安全、质量员各缺一人。
‘4심제’ 재판소원법 與주도 국회 통과…헌재가 대법판결 번복 가능
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Point lookups are useful, but the operation you'll reach for more often is a range query: give the tree a rectangular region and retrieve every point inside it, without scanning the entire dataset.
Making Unicode risk measurable